Sheet-metal screw-nozzle



(ModeL) M. OCONNOR.

SHEET METAL soanw NOZZLE.

No. 299,841. Patented June 3, 1884.

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MICHAEL OGQNNOR, OF NEW BRUNSIVIOK, NEW JERSEY.

SHEET-METAL SCREW-NOZZLE.

SPECIFICATION forming part of Letters Patent No, 299,841, dated June 3, 1884.

Application filed April 18. 1852.

To all whom it may concern.-

Be it known that 1, MICHAEL OCoNNoR,of New Brunswick, in the county of Middlesex and State of New Jersey, have invented certain new and useful Improvements in Sheet- Metal Screw-Nozzles Designed for Employment on Oil-Cans and Analogous Vessels; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the drawings which accompany and form part of this specification.

My invention relates to that class of screwnozzles generally used on metallic cans for the storage and transportation of oil.

Such nozzles as most commonly heretofore used-forloil-cans and similar purposes have been formed out of sheet-zinc or other ductile metal capable of being easily worked or spun or struck up into the desired shape, and at the same time possessing sufficient rigidity or stiffness of itself to retain the shape given it;

under the contingencies of ordinary usage. Nozzles made of such material are, however, comparatively expensive on account of the cost of material possessing the necessary qualities.

The object of my invention therefore, is to afford means for producing such nozzles economically, utilizing for that purpose a very cheap material, easily worked or manipulated, so that nozzles for the purposes set forth may be put upon the market at a less cost both in material and manufacture than any hitherto used with which I am acquainted. In accomplishing this object I use what is ordinarily known as taggers tin for the body of the nozzle, and for the cap thereto. As is well known, this material is quite cheap, but exceedingly thin and without rigidity enough to preserve any shape given it under the contingencies of ordinary use. To avail of its cheapness and to remedy the defects noted, the nozzle is spun or struck up of this material, (taggers tin,) thenozzle being provided with the ordinary shoulder for attachment to the vessel, a screw-threaded body rising therefrom,upon which the cap may be screwed. To stiffen it, a strip of ordinary tin or other similar comparatively stiff sheet metal is taken and a shoulder formed on one edge thereof. It is then bent into a circle and inserted with (Model) in the nozzle formed of taggers tin, and the two secured together by soldering or by sweating, the re-enforcing-piece thus secured to-the nozzle furnishing the stiffness and rigidity requisite to the nozzle. The nozzle should be made of one piece of metal, the web of which extends over and closes what is intended eventually to be the orifice for withdrawing the contents of the vessel. This web,when the vessel has arrived at the point of consumption of its contents, is readily cut away, and a cap used upon the nozzle to thereafter close the orifice. This may be better understood by reference to the drawings, in which- Figure l is a side or front view of a nozzle; Fig. 2, a sectional view showing the re-enforcement alluded to. Fig. 3 is a section of the same with the web cut away, and a side view of the cap to be used with the nozzle. Fig. 4 is a side view, and Fig. 5 a top view, of the re-enforciug collar. Fig. 6 is a strip of 'metal prior to its formation into such re-enforcing collar. Fig. 7 shows the line of cutting the web over the nozzle when the vessel is first opened.

A, Figs. 1, 2, and 3, represents a screw-nozzle made according to my invention. It is stamped or struck up into shape out of taggers tin, and has the screw-thread a formed in it in any of the usual ways. In this condition and for the purpose of imparting to it the requisite rigidity and strength, I insert into it from its under side a flanged collar, 0, Figs. 2, 3, 4c, and -5, made of thicker tin or of other suitable and sufficiently cheap metal, in the outline which is best seen in Fig. 4:, which exhibits the external flange, 9, more clearly than it is shown in the other figures. This flanged collar thus formed I unite to the inner surface of the wall of the nozzle by soldering, or preferably by sweating, in such manner that the flange g of the collar shall come in contact manufacture will be found to be insignificant.

in comparison with zinc or any other material heretofore employed for these articles.

The collar may be formed in various ways,

but the mode which I prefer, on account of its cheapness, is simply to cut rectangular strips B, Fig. 6, of the requisite length and width out of a sheet of the tin or other metal employed for the purpose, and then stamp or strike up the flange 9 upon one side of it and bend it into the circular form shown in Fig. 5. It is not necessaryto solder or otherwise'unite the joint t, though of course this may be done if desired. But it will be found that when the collar is sweated into the nozzle the joint will be sufficiently closed. If the collar were struck up in its finished circular form out of a sheet of material, a considerable percentage of every sheet would necessarily be wasted. But by making it in the mode described every part of the material will be utilized, and this will greatly increase the economy of production.

As shown in the drawings, it will be seen that the nozzle has no orifice at its upper side, but that the metal of which it is made covers and closes entirely its top surface. This is the means which, as is well known, is generally adopted in cans and vessels of the kinds in which many sorts of screw-nozzles are employed to most completely protect their contents during transportation and storage. But when it becomes necessary, access to the inside of the can may be had by cutting out the interior portion of the taggers tin, forming the nozzle in the usual Way, as represented in Fig. 7. To "aid in this a line, 6, is indented in the web (I of the nozzle during its formation and near its periphery, affording a guide and easy line of cutting for the cutting instrument 7c. After the web 61 is cut out, the screw-threaded cap B may be used to close securely the vent or opening thus formed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A screw-nozzle consisting of a body of taggers tin or other thin metal formed with suitable screw -threads, and a re-enforcing collar or band of heavier or stiffer metal introduced and secured within the body, sub- 

